In rehearsal footage featured on CNN whenSteely Dan were promoting the 2 against nature album you can get a clear view of the MXR phase 90 Fagen uses for his signature sound jst sitting on top of his rhodes as he performs josie.

A photo from jayhawksfanpage.com that shows the Gary's pedalboard on a Chicago show on 07/26/98. This small simple orange pedal is a MXR Phase 90 that can be heard in parallel with distortion in order to get a particular rythm sound.

"That Carbon Copy is the best delay I've ever used, hands down, no contest... The Cry Baby wah-wah pedal is more than just another piece of gear on my pedalboard. I purchased one the day I bought my first guitar and have never played a show without in the last 25 years. The same goes for the MXR Phase 90, and the mustard yellow Distortion+. It's at core of my personal sound, I use it as lead channel, I use it in a set position as much as I use it in an up and down motion. I couldn't live without it!"

Steve Jones used the MXR orange phaser live when he was in the Sex Pistols. He said in an interview with Ultimate Guitar it was a Phase 45 (https://www.ultimate-guitar.com/news/interviews/the_classic_albums_never_mind_the_bollocks_heres_the_sex_pistols.html) He mentions recording "Anarchy in the UK" with an MXR Phase 90 in a 2017 interview, seen here: http://teamrock.com/feature/2017-10-24/the-guitar-stories-behind-never-mind-the-bollocks-by-steve-jones 0:21 & 1:07 of the video shows an orange phaser on the floor at his feet, & based on the orange color & sound, it's clearly an MXR phaser. Given that he himself has mentioned he used both the Phase 90 & the Phase 45, who knows what phaser he actually used. Either way, it was an MXR.
While I've confirmed Steve Jones used a Phase 45 &/or MXR Phase 90, I'm not sure of which specific MXR Phase 90 version he used, but I'd guess it's the script version. Here's why I believe it's the script version of the Phase 90 and not the later block logo version: according to the Sex Pistols' official website section on "Anarchy in the UK," (http://www.sexpistolsofficial.com/records/anarchy-in-the-uk-7/) the song was first released as a single on November 26, 1976. According to the Wikipedia page on the MXR Phase 90 (https://en.wikipedia.org/wiki/MXR_Phase_90), the block logo version of the Phase 90 wasn't released until the next year in 1977, meaning it would have been impossible for Steve Jones to use the block logo Phase 90 to record Anarchy in the UK, as the block logo Phase 90 hadn't been released yet. However, there was a transitional period between the debut of the original Phase 90 in 1974 and the update to the block logo version in 1977 where some Phase 90s with script logos had the circuits from the newer block version, and vice versa. So while it's impossible to know the exact circuitry version in Jones' personal Phase 90, we can confirm that the phaser he used on "Anarchy in the UK" was indeed an MXR Phase 90, as seen in the video of the Sex Pistols performing "Anarchy in the UK" in 1976, and in the aforementioned interview where Jones explicitly states he used an MXR Phase 90. Personally, I'd recommend trying an MXR Phase 95 to replicate Steve Jones' sound with the Sex Pistols. While we don't know what circuitry version was in Jones' MXR phaser, or whether it was a 45 or 90, the MXR Phase 95 can switch between script/block circuitry & 45/90 modes, and it's an MXR phaser like Steve Jones used in the Sex Pistols. Hope this helps!

During his time in Undivide, Leda has released an album called "Materials Left Aside." One of the songs in the album, "White Hole," featured an ambient chorus/delay sound in the intro section.
3:51 - Several of Leda's front-of-amp pedals can be seen - he uses a TC Electronic Polytune 2 Mini, a TC Electronic Polytune, a wah pedal, MXR Phase 90 and an ISP Decimator.

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reviews

There are lots of phasers around, but somehow almost everyone ends up with Phase90. No other phaser sounds so natural, lush, warm and sits so great in the mix on cleans, overdrive or hi-gain distortions. Single knob control makes it extremely easy to use and offers lots of tones just right away - from subtle phasing to extreme psychodelic sounds.

However there is one minor flaw - current version, A.K.A. block logo has an awful volume boost which is quite annoying in some circumstances. Some people just get along with it, some do not. For those who do not a simple mod can be done - literally 5 minutes of work. Open up the pedal, find the R28 capacitor (manual on the web) and snip it. Problem will be gone, no more boost, just pure phase shifting.

the other 1 knobbie, the smallstone, has a totally different voicing... the bad stone is also different than its MXR equivalent phase 100... I always thought that older smallstones sounded better and they aren't pricey.The Mutron biphase is unbelievably pricey, but you can stills coe a Mutron Phaser I or Phaser II for cheap. They sound fucking great and do their own thing... the old DOD phasers sound amazing, still really cheap too, similar in design to a small stone or bad stone but totally different voicing and more knobs

I can play without wah, chorus and flanger, but without the Phase 90 I'm lost!
It gives life both to clean, crunch and lead tones, set it BEFORE overdrive/distortions and you'll be in heaven.
Irreplaceable.

I have found very few uses for the Phase 90, but I've been able to truly create an amazing sound when I've felt the ability to incorporate it into my playing. In my experience, I've been able to use it in three situations: (1) Hendrix-esque soloing with very heavy distortion placed on top of the Phase 90's intensity set about halfway, (2) Effect-heavy lead lines in dark, weird alt-rock music (intensity set between halfway and full), and (3) Open, subtle chords played lightly over light pads (intensity very low, almost at 0).